6x+7(x-3)=-8x-21

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Solution for 6x+7(x-3)=-8x-21 equation: 



6x+7(x-3)=-8x-21

We move all terms to the left:

6x+7(x-3)-(-8x-21)=0

We multiply parentheses

6x+7x-(-8x-21)-21=0

We get rid of parentheses

6x+7x+8x+21-21=0

We add all the numbers together, and all the variables

21x=0

x=0/21

x=0

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